1FUNCTION::USER_STRIN(3staSpt)ring and data retrieving fFuUnNCTION::USER_STRIN(3stap)
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NAME

6       function::user_string_n_quoted - Retrieves and quotes string from user
7       space
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SYNOPSIS

10           user_string_n_quoted:string(addr:long,n:long)
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ARGUMENTS

13       addr
14           the user space address to retrieve the string from
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16       n
17           the maximum length of the string (if not null terminated)
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DESCRIPTION

20       Returns up to n characters of a C string from the given user space
21       memory address where any ASCII characters that are not printable are
22       replaced by the corresponding escape sequence in the returned string.
23       Reports “NULL” for address zero. Returns “<unknown>” on the rare cases
24       when userspace data is not accessible at the given address.
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28SystemTap Tapset Reference        August 2011      FUNCTION::USER_STRIN(3stap)
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